| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
|
|---|
| Outline of Final Research Achievements |
The pressure drop arisen when liquid permeate thorough very narrow space was studied from view point of electrokinetic phenomena. The streaming potential method was employed as electrokinetic phenomena. A novel characterization method of surface charge density and size of the narrow space, i.e. the gap between particles in cake layer, were developed with the streaming potential method. As a pressure drop field the cake layer made by particles of PMMA sphere, JIS powder (Kanto loam, Calcium bicarbonate), slightly soluble salt crystal(PbSO4, Zn(OH)2) were used. The gap between particles determined by the developed method showed reasonable value with the conventional methods, which showed the usefulness of this method. The surface charge density of the cake layer depended on materials used and ranged from 0.05 to 0.02C/m2. These results showed the basic fundamental for developing the real time monitoring of the gap during filtration processes.
|
